When seams leave marks

Short answer: A seam that leaves marks sits where clothing is pressed against the skin. It is rarely the seam that is too big, but the pressure that is too concentrated. Flat seams and thoughtful placement make the biggest difference.

Pressure gathers at the seam

A seam is thicker than the fabric around it, because two or more layers are sewn together. When clothing is pressed against the body, the seam therefore carries most of the pressure. The rest of the fabric gives, while the seam stays firm. That is why you can see its line on your skin after a long day.

Where a bra presses

A bra sits close to the body all day and has more seams than most other garments. Seams under the bust and at the sides can press if the band is too tight or a seam sits in the wrong place. A soft style with few, flat seams presses less. Have a look at our bamboo bra if you want a softer fit.

Flat seams spread it better

A flatlock seam lies in the same plane as the fabric and therefore presses less. The edges are sewn flat together instead of being folded under each other. There is no thick ridge pushing into the skin. You can feel the difference by running a finger along the inside. The flatter it feels, the smaller the mark.

Placement matters most

A seam that sits where you sit or carry something will always be felt. That applies to the back seam of trousers on a hard chair, or a seam under a bag strap on your shoulder. Even a flat seam can leave marks if it is pressed for hours. So think about how you use the garment when you choose a style.

Soft trousers for long days

Trousers with stiff seams can leave clear marks after a long day at a desk. Soft sweatpants in a fabric that gives press less, because the fabric around the seam follows the body too. That makes them pleasant for quiet days and evenings. See our bamboo sweatpants for women if you want something soft to sit in.

The toe seam in socks

The seam across the toes is a classic place where seams bother people. If it sits crooked or is thick, it can rub during the day, especially in snug shoes. Pull the sock on properly so the seam lies straight across the toes. Have a look at our bamboo socks for men and women.

Size plays a part

Clothing that is too tight presses the seams harder against the skin. A size that fits lets the fabric rest calmly against the body without pulling. If a seam leaves clear marks every time, it is worth trying one size up before you give up on the style. Often it is the pressure, not the seam, that is the problem.

Look after your skin

Marks from seams are usually harmless and fade after a short while. If redness lingers or the skin becomes sore, that is a sign to change styles. Give the area a few days of rest from the pressure. If you have questions about your skin, talk to your doctor.

Frequently asked questions

Why do seams leave marks

Because the seam is thicker than the fabric around it and therefore carries more of the pressure when clothing is pressed against the skin. The fabric gives, but the seam does not.

What can you do

Choose styles with flat seams, and avoid seams exactly where you sit or wear a strap. A size that does not squeeze helps as well.

Are marks from seams harmful

Not if they fade again. If they last for hours or cause sores, you should switch to a different style and let the skin rest for a few days.